Home / 928,411.20-1,392,616.80-297,388.80

Finding the Fourth Proportional to 928,411.20, 1,392,616.80 and 297,388.80

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Solution

The fourth proportional to 928,411.20, 1,392,616.80 and 297,388.80 is: 446,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,411.20 : 1,392,616.80 = 297,388.80 : x
  2. Step 2: Convert to fraction form
    928,411.20/1,392,616.80 = 297,388.80/x
  3. Step 3: Cross multiply
    928,411.20x = 1,392,616.80 × 297,388.80
  4. Step 4: Simplify right side
    928,411.20x = 414,148,639,011.84
  5. Step 5: Solve for x
    x = 414,148,639,011.84/928,411.20
  6. Step 6: Final answer
    x = 446,083.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.